- Lead
- 12,886
- Total
- 30,134
- vs nation
- D+44.2
Connecticut 1st State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 15,012
- Total
- 31,607
- vs nation
- D+43.0
- Lead
- 16,847
- Total
- 30,352
- vs nation
- D+53.4
- Lead
- 17,491
- Total
- 29,858
- vs nation
- D+54.7
- Lead
- 19,916
- Total
- 31,975
- vs nation
- D+55.0
- Lead
- 15,558
- Total
- 28,816
- vs nation
- D+56.4
- Lead
- 15,809
- Total
- 27,660
- vs nation
- D+56.6
- Lead
- 14,892
- Total
- 26,455
- vs nation
- D+47.8
Key facts
- 2024 presidential margin
- D+42.8MIT Election Lab
- Population
- 94,4792024 5-year
- Population density
- 4,748 / sq mi2024 5-year · TIGER/Line
- Land area
- 19.9 sq miTIGER/Line
- Median household income
- $58,2652024 5-year
- White (non-Hispanic)
- 28.2%2024 5-year
- Black
- 16.8%2024 5-year
- Hispanic / Latino
- 47.6%2024 5-year
- Peak Democratic margin
- D+71.9 in 1964MIT Election Lab
- Peak Republican margin
- R+3.7 in 1896MIT Election Lab
- Most similar
- State Senate District 2, PA · twin score 93.6
presidential history
Party record book
Connecticut 1st State Senate District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Lyndon B. Johnson1964
85.9%
23,082 votes · D+71.9 · modeled estimate
Runner-up · Barack Obama, 2008 · 80.8%
Republican
William McKinley1896
50.0%
1,043 votes · R+3.7 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · 45.5%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
25,826votes
80.8% of the vote · D+62.3 · modeled estimate
Runner-up · Barack Obama, 2012 · 23,569 votes
Republican
Ronald Reagan1984
8,764votes
35.0% of the vote · D+29.7 · modeled estimate
Runner-up · Donald Trump, 2024 · 8,403 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
George McGovern1972
+57.3pts D vs U.S.
Place D+34.2 · U.S. R+23.2 · modeled estimate
Runner-up · Al Gore, 2000 · +56.6 pts
Republican
William McKinley1896
−2.3pts R vs U.S.
Place R+3.7 · U.S. R+6.1 · modeled estimate
Runner-up · William H. Taft, 1912 · −15.9 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Centered on Connecticut's largest city, this district posts presidential margins well above the statewide Democratic baseline, reflecting Bridgeport's dense, majority-minority urban core and persistently low median household incomes relative to the state.
Across the recorded series it reached a Democratic high of 71.9 points in 1964 and a Republican high of 3.7 points in 1896. Between 2020 and 2024 the district moved 4.7 points toward the Republican candidate; the 2024 margin was 42.8 points.
A population of 94,479, a 28% non-Hispanic-white share, and a median household income of $58,265 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 2 and State Senate District 11.
The state-senate districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
Connecticut 1st State Senate District. Akashic. https://akashic.app/sld-upper/09001/. Accessed May 20, 2026. License: CC BY 4.0.